. 2015 Feb 16;6(1):66–76. doi: 10.3390/jfb6010066

Table 3.

Average score of the smear layer for the coronal, middle and apical third of the canals (Values with the same superscript letters were not statistically different at * P = 0.05).

Group	Coronal	Middle	Apical	Overall
Mtwo	1.13 ^a	1.33 ^a	1.40 ^a	1.29 ^a
Revo-S	1.20 ^a	1.27 ^a	1.33 ^a	1.27 ^a
HyFlex CM	2.33 ^b	2.60 ^b	3.27 ^b	2.73 ^b